参数资料
型号: MAX9750CETI+
厂商: Maxim Integrated Products
文件页数: 23/30页
文件大小: 0K
描述: IC AMP AUDIO PWR 2.6W AB 28TQFN
标准包装: 60
系列: DirectDrive®
类型: AB 类
输出类型: 2-通道(立体声)带立体声耳机
在某负载时最大输出功率 x 通道数量: 2.2W x 2 @ 3 欧姆; 110mW x 2 @ 16 欧姆
电源电压: 4.5 V ~ 5.5 V
特点: 消除爆音,短路保护和热保护,关机,音量控制
安装类型: 表面贴装
供应商设备封装: 28-TQFN-EP(5x5)
封装/外壳: 28-WFQFN 裸露焊盘
包装: 管件
MAX9750/MAX9751/MAX9755
2.6W Stereo Audio Power Amplifiers and
DirectDrive Headphone Amplifiers
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(VDD = PVDD = CPVDD = HPVDD = 5V, VGND = VPGND = VCPGND = 0V, SHDN = VDD, CBIAS = 1F, C1 = C2 = 1F, speaker load
terminated between OUT_+ and OUT_-, headphone load terminated between HPOUT_ and GND, VGAIN1 = VGAIN2 = VVOL = VGAIN = 0V,
TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX9750A/
MAX9750B/
MAX9751/
MAX9755
0.9
1.4
RL = 8
Ω
MAX9750C
0.65
0.8
MAX9750A/
MAX9750B/
MAX9751/
MAX9755
2.3
RL = 4
Ω
MAX9750C
1.2
1.5
MAX9750A/
MAX9750B/
MAX9751/
MAX9755
2.6
Output Power (Note 4)
POUT
THD+N = 1%,
f = 1kHz,
TA = +25°C
RL = 3
Ω
MAX9750C
2.2
W
RL = 8
Ω, POUT = 500mW, f = 1kHz
0.01
Total Harmonic Distortion Plus
Noise
THD+N
RL = 4
Ω, POUT = 1W, f = 1kHz
0.02
%
Signal-to-Noise Ratio
SNR
RL = 8
Ω, POUT = 500mW, BW = 22Hz to
22kHz
96
dB
Noise
Vn
BW = 22Hz to 22kHz, A-weighted
22
VRMS
Capacitive-Load Drive
CL
No sustained oscillations
200
pF
Crosstalk
L to R, R to L, f = 10kHz
75
Off-Isolation
Any unselected input to any active input,
f = 10kHz (MAX9751), input referred
75
dB
Slew Rate
SR
1.4
V/s
GAIN1 = 0, GAIN2 = 0
9
GAIN1 = 1, GAIN2 = 0
10.5
GAIN1 = 0, GAIN2 = 1
12
MAX9750A
GAIN1 = 1, GAIN2 = 1
13.5
GAIN1 = 0, GAIN2 = 0
15
GAIN1 = 1, GAIN2 = 0
16.5
GAIN1 = 0, GAIN2 = 1
18
MAX9750B
GAIN1 = 1, GAIN2 = 1
19.5
GAIN1 = 0, GAIN2 = 0
6
GAIN1 = 1, GAIN2 = 0
7.5
GAIN1 = 0, GAIN2 = 1
9
Gain (Maximum Volume Setting)
AVMAX(SPKR)
MAX9750C
GAIN1 = 1, GAIN2 = 1
10.5
dB
GAIN = 1
9
Gain (MAX9751/MAX9755)
AV
GAIN = 0
10.5
dB
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